Hi, Do you use SLI?
If answer is yes -> http://www.techpowerup.com/forums/threads/guide-how-to-enable-use-and-configure-sli-on-linux.52953 is the first thing, what you need. After that I had to use my /etc/default/grub with "vmalloc=320" parameter. Good Luck! 2014-10-01 17:26 GMT+02:00 Sven Joachim <svenj...@gmx.de>: > On 2014-10-01 16:39 +0200, berenger.mo...@neutralite.org wrote: > > > I have recently acquired 2 (identical, 4/3 shaped) screens, so I > > combined them with my current favorite screen on a computer which have > > 2 graphic cards, but it seems that Debian did not enabled the second > > card. > > > > I have tried it on a temporary Ubuntu install, and it works fine out > > of the box, so Debian must be able to use that 2nd card too. I tried > > to install a more recent kernel from backports on Debian just in case, > > but still no luck. Now that I'm thinking about it, I did not checked > > what Ubuntu uses as driver, so if it uses NVidia, this could be the > > reason, since I'm using nouveau on Debian. But I think that Ubuntu > > does not install proprietary blobs by default? > > I tried to find a xorg.conf in /etc on both system, no one had it. > > > > There is no Internet access from that computer, so packages are > > installed from the Ubuntu DVD I bought 2-3 months ago (14.04 IIRC) and > > from a Debian DVD set I have downloaded at work (7.5, DVDs 1 to 9 > > IIRC). > > Obviously, Ubuntu 14.04 is quite a bit newer than Debian 7, so some > things which work there might not be supported in Wheezy. > > > Does anyone knows if nouveau is supports a configuration with 2 > > graphic cards, or do I have to install NVidia's drivers to do the job? > > Does someone have some links to documents which could explain how to > > enable that 2nd card? > > http://nouveau.freedesktop.org/wiki/MultiMonitorDesktop/ has some > information. > > > Note that I think the second card is disabled, because after doing > > quick searches in /sys, I discovered that what I suppose to be the > > second card directory have a file named "enabled" which contains > > "0". But I'm not expert at all when it comes to kernel stuff. > > Me neither, but running "dmesg | grep nouveau" could be useful. > > Cheers, > Sven > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact > listmas...@lists.debian.org > Archive: https://lists.debian.org/87k34ju7z0....@turtle.gmx.de > >
